Standard Lemma guide

superfast

adj · adv · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈsupɚˌfæst/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: S UW1 P ER0 F AE2 S T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Extremely fast.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adv

Meaning 2

At extremely high speed.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Italic *super Latin super Latin super-lbor. English super- Proto-Germanic *fastuz Proto-West Germanic *fast Old English fæst Middle English fast English fast English superfast From super- + fast.

Across languages

Translations

3 source translations are retained for this English entry.

  • Dutch: razendsnel — extremely fast
  • Ukrainian: надшвидки́й (nadšvydkýj) — extremely fast
  • Dutch: razendsnel — at extremely high speed
Real reading context

superfast in complete knowledge articles